Malicious PDF — malware analysis report

Static analysis result for SHA-256 cab0ea00c3919884…

MALICIOUS

PDF

73.8 KB Created: 2021-03-25 13:39:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70e9b5abbd802a16d68b499effa0d127 SHA-1: 76d5dbee07994c3ba8b208fe0e07c12173e0ed27 SHA-256: cab0ea00c3919884f0e9ece3d5cffa4889f444f95b1da1e37178e05a21c27a93
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'https://lozipotod.ru/123?utm_term=domain+range+graph+worksheet', which is likely used to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests it is presented as a worksheet, aligning with a common lure for malicious documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://lozipotod.ru/123?utm_term=domain+range+graph+worksheet
    • https://cdn.sqhk.co/degamuwubela/hdjbtob/advertising_copy_definition_economics.pdf
    • https://cdn.sqhk.co/xuxofidipo/lgjhfii/download_glory_ages_samurai_mod_apk_1._04.pdf
    • https://cdn-cms.f-static.net/uploads/4478923/normal_600b4e4a7ca36.pdf
    • http://dobofozepop.mygamesonline.org/honda_generator_showroom_near_me.pdf
    • https://cdn-cms.f-static.net/uploads/4489979/normal_605021e84cefe.pdf
    • https://cdn-cms.f-static.net/uploads/4423714/normal_60380d80cb7a4.pdf
    • https://cdn.sqhk.co/sojuzafu/gdiijes/gosirifevoliw.pdf
    • https://cdn.sqhk.co/fafovewidom/chbNKfV/carriage_hill_kennels.pdf
    • http://bafakuvim.sportsontheweb.net/jiwadezinitotejozomidur.pdf
    • https://cdn-cms.f-static.net/uploads/4402720/normal_601f5c4cc456a.pdf
    • https://cdn-cms.f-static.net/uploads/4389823/normal_5fe6d02e2df1d.pdf
    • http://vigikigopaloze.medianewsonline.com/2568289239.pdf
    • https://cdn.sqhk.co/noneniwetav/jqh9ggs/mafanevomujovapavob.pdf
    • http://rowexusaje.mypressonline.com/foxit_reader_crack_download.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/mejifavo/selected_information_substantially_all_disclosures_omitted.pdf
    • https://b5f169ef-6bcf-4d19-a24b-32bdc9dd7a5f.filesusr.com/ugd/2e79a6_0238115896404b8f8087eb8e538081b4.pdf?index=true
    • https://1b6fbac1-9b66-4609-9151-81f5d4c316f7.filesusr.com/ugd/5e81b9_5793aa07a6754fb19202fafd6662d380.pdf?index=true
    • https://s3.amazonaws.com/jijumupade/baahubali_1_hd_video.pdf
    • https://s3.amazonaws.com/kegovev/teri_bholi_si_surat_sawariya_ringtone.pdf
    • http://bafuwujix.atwebpages.com/simpsons_family_tree_worksheet_spanish.pdf
    • http://jezevenakos.myartsonline.com/bio_data_form_free_download.pdf
    • https://s3.amazonaws.com/tesotiwapax/pedaleira_zoom_a2_violao.pdf
    • https://41be308f-8a64-4dec-8b30-4937605be974.filesusr.com/ugd/f042fe_54a8aa797f52401d8bc6731e54bfc862.pdf?index=true
    • http://bixozebaxikapos.atwebpages.com/pathfinder_adventure_paths_ranked_2019.pdf
    • https://s3.amazonaws.com/sorogamat/maths_worksheets_ks1_year_2.pdf
    • https://66c7139a-03c0-45fe-98d3-e817d1e01442.filesusr.com/ugd/de2db5_addf7e6cf40743ee965d1e760dbee99a.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2e3.bin
fcc0d5d5246fb440e9cb7af82ae48e5ec8bca2088d9af4d9581edddab2e54f81		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E3 5356 bytes
font_01_sfnt_off0000f504.bin
a75eda88d344a86077a3da8f50679ae785ee224a312c96a8dde2e7349fba2561		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF504 10744 bytes

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